I love cats. Unfortunately my indoor only cat has decided he has beef with the neighbours indoor/outdoor cats. It’s been stressing him out really bad. So now instead of trying to pet the neighbours cats, I’ve become a bouncer to my backyard.

I’m using feliway but I cant having it running 24/7 as my husband is afraid it will cause a fire (multiple diffusers constantly have a burning smell)

I’ve tried putting out his used litter near the border of the fence but it seemed to do the opposite.

The other neighbours dog constant barking doesn’t phase them. Nor do loud noises.

Other than just shooing them away is there any other way to discourage them? Or de-stressing my cat?